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<h2><span class="refentrytitle"><a name="gstreamer-GstValue.top_of_page"></a>GstValue</span></h2>
<p>GstValue — GValue implementations specific
to GStreamer</p>
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<div class="refsect1">
<a name="gstreamer-GstValue.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-MAKE-FOURCC:CAPS" title="GST_MAKE_FOURCC()">GST_MAKE_FOURCC</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-STR-FOURCC:CAPS" title="GST_STR_FOURCC()">GST_STR_FOURCC</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-FOURCC-ARGS:CAPS" title="GST_FOURCC_ARGS()">GST_FOURCC_ARGS</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-INT-RANGE:CAPS" title="GST_VALUE_HOLDS_INT_RANGE()">GST_VALUE_HOLDS_INT_RANGE</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-int-range" title="gst_value_set_int_range ()">gst_value_set_int_range</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-int-range-min" title="gst_value_get_int_range_min ()">gst_value_get_int_range_min</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-int-range-max" title="gst_value_get_int_range_max ()">gst_value_get_int_range_max</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-int-range-step" title="gst_value_set_int_range_step ()">gst_value_set_int_range_step</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-int-range-step" title="gst_value_get_int_range_step ()">gst_value_get_int_range_step</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-BITMASK:CAPS" title="GST_VALUE_HOLDS_BITMASK()">GST_VALUE_HOLDS_BITMASK</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-bitmask" title="gst_value_set_bitmask ()">gst_value_set_bitmask</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint64"><span class="returnvalue">guint64</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-bitmask" title="gst_value_get_bitmask ()">gst_value_get_bitmask</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-FLAG-SET:CAPS" title="GST_VALUE_HOLDS_FLAG_SET()">GST_VALUE_HOLDS_FLAG_SET</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-structure-get-flagset" title="gst_structure_get_flagset ()">gst_structure_get_flagset</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-flagset-flags" title="gst_value_get_flagset_flags ()">gst_value_get_flagset_flags</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-flagset-mask" title="gst_value_get_flagset_mask ()">gst_value_get_flagset_mask</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-flagset" title="gst_value_set_flagset ()">gst_value_set_flagset</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-INT64-RANGE:CAPS" title="GST_VALUE_HOLDS_INT64_RANGE()">GST_VALUE_HOLDS_INT64_RANGE</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-int64-range" title="gst_value_set_int64_range ()">gst_value_set_int64_range</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="returnvalue">gint64</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-int64-range-min" title="gst_value_get_int64_range_min ()">gst_value_get_int64_range_min</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="returnvalue">gint64</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-int64-range-max" title="gst_value_get_int64_range_max ()">gst_value_get_int64_range_max</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-int64-range-step" title="gst_value_set_int64_range_step ()">gst_value_set_int64_range_step</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="returnvalue">gint64</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-int64-range-step" title="gst_value_get_int64_range_step ()">gst_value_get_int64_range_step</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-DOUBLE-RANGE:CAPS" title="GST_VALUE_HOLDS_DOUBLE_RANGE()">GST_VALUE_HOLDS_DOUBLE_RANGE</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-double-range" title="gst_value_set_double_range ()">gst_value_set_double_range</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-double-range-min" title="gst_value_get_double_range_min ()">gst_value_get_double_range_min</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-double-range-max" title="gst_value_get_double_range_max ()">gst_value_get_double_range_max</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-LIST:CAPS" title="GST_VALUE_HOLDS_LIST()">GST_VALUE_HOLDS_LIST</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-ARRAY:CAPS" title="GST_VALUE_HOLDS_ARRAY()">GST_VALUE_HOLDS_ARRAY</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-list-append-value" title="gst_value_list_append_value ()">gst_value_list_append_value</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-list-append-and-take-value" title="gst_value_list_append_and_take_value ()">gst_value_list_append_and_take_value</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-list-prepend-value" title="gst_value_list_prepend_value ()">gst_value_list_prepend_value</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-list-concat" title="gst_value_list_concat ()">gst_value_list_concat</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-list-merge" title="gst_value_list_merge ()">gst_value_list_merge</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-list-get-size" title="gst_value_list_get_size ()">gst_value_list_get_size</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="returnvalue">GValue</span></a> *
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-list-get-value" title="gst_value_list_get_value ()">gst_value_list_get_value</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-FRACTION:CAPS" title="GST_VALUE_HOLDS_FRACTION()">GST_VALUE_HOLDS_FRACTION</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-fraction" title="gst_value_set_fraction ()">gst_value_set_fraction</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-fraction-numerator" title="gst_value_get_fraction_numerator ()">gst_value_get_fraction_numerator</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-fraction-denominator" title="gst_value_get_fraction_denominator ()">gst_value_get_fraction_denominator</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-fraction-multiply" title="gst_value_fraction_multiply ()">gst_value_fraction_multiply</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-fraction-subtract" title="gst_value_fraction_subtract ()">gst_value_fraction_subtract</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-FRACTION-RANGE:CAPS" title="GST_VALUE_HOLDS_FRACTION_RANGE()">GST_VALUE_HOLDS_FRACTION_RANGE</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-fraction-range" title="gst_value_set_fraction_range ()">gst_value_set_fraction_range</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="returnvalue">GValue</span></a> *
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-fraction-range-min" title="gst_value_get_fraction_range_min ()">gst_value_get_fraction_range_min</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="returnvalue">GValue</span></a> *
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-fraction-range-max" title="gst_value_get_fraction_range_max ()">gst_value_get_fraction_range_max</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-fraction-range-full" title="gst_value_set_fraction_range_full ()">gst_value_set_fraction_range_full</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-DATE-TIME:CAPS" title="GST_VALUE_HOLDS_DATE_TIME()">GST_VALUE_HOLDS_DATE_TIME</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-CAPS" title="GST_VALUE_HOLDS_CAPS()">GST_VALUE_HOLDS_CAPS</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-caps" title="gst_value_set_caps ()">gst_value_set_caps</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> *
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-caps" title="gst_value_get_caps ()">gst_value_get_caps</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-CAPS-FEATURES:CAPS" title="GST_VALUE_HOLDS_CAPS_FEATURES()">GST_VALUE_HOLDS_CAPS_FEATURES</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-caps-features" title="gst_value_set_caps_features ()">gst_value_set_caps_features</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="returnvalue">GstCapsFeatures</span></a> *
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-caps-features" title="gst_value_get_caps_features ()">gst_value_get_caps_features</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-STRUCTURE:CAPS" title="GST_VALUE_HOLDS_STRUCTURE()">GST_VALUE_HOLDS_STRUCTURE</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-structure" title="gst_value_set_structure ()">gst_value_set_structure</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a class="link" href="GstStructure.html" title="GstStructure"><span class="returnvalue">GstStructure</span></a> *
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-structure" title="gst_value_get_structure ()">gst_value_get_structure</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-BUFFER:CAPS" title="GST_VALUE_HOLDS_BUFFER()">GST_VALUE_HOLDS_BUFFER</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-buffer" title="gst_value_get_buffer()">gst_value_get_buffer</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-buffer" title="gst_value_set_buffer()">gst_value_set_buffer</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-take-buffer" title="gst_value_take_buffer()">gst_value_take_buffer</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#GST-VALUE-HOLDS-SAMPLE:CAPS" title="GST_VALUE_HOLDS_SAMPLE()">GST_VALUE_HOLDS_SAMPLE</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-get-sample" title="gst_value_get_sample()">gst_value_get_sample</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-set-sample" title="gst_value_set_sample()">gst_value_set_sample</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-take-sample" title="gst_value_take_sample()">gst_value_take_sample</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="gstreamer-GstValue.html#GstValueCompareFunc" title="GstValueCompareFunc ()">*GstValueCompareFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="gstreamer-GstValue.html#GstValueSerializeFunc" title="GstValueSerializeFunc ()">*GstValueSerializeFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="gstreamer-GstValue.html#GstValueDeserializeFunc" title="GstValueDeserializeFunc ()">*GstValueDeserializeFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-is-fixed" title="gst_value_is_fixed ()">gst_value_is_fixed</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-register" title="gst_value_register ()">gst_value_register</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-init-and-copy" title="gst_value_init_and_copy ()">gst_value_init_and_copy</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-serialize" title="gst_value_serialize ()">gst_value_serialize</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-deserialize" title="gst_value_deserialize ()">gst_value_deserialize</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-compare" title="gst_value_compare ()">gst_value_compare</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-can-compare" title="gst_value_can_compare ()">gst_value_can_compare</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-union" title="gst_value_union ()">gst_value_union</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-can-union" title="gst_value_can_union ()">gst_value_can_union</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-subtract" title="gst_value_subtract ()">gst_value_subtract</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-can-subtract" title="gst_value_can_subtract ()">gst_value_can_subtract</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-intersect" title="gst_value_intersect ()">gst_value_intersect</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-can-intersect" title="gst_value_can_intersect ()">gst_value_can_intersect</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-is-subset" title="gst_value_is_subset ()">gst_value_is_subset</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-array-append-value" title="gst_value_array_append_value ()">gst_value_array_append_value</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-array-append-and-take-value" title="gst_value_array_append_and_take_value ()">gst_value_array_append_and_take_value</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-array-get-size" title="gst_value_array_get_size ()">gst_value_array_get_size</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="returnvalue">GValue</span></a> *
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-array-get-value" title="gst_value_array_get_value ()">gst_value_array_get_value</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-array-prepend-value" title="gst_value_array_prepend_value ()">gst_value_array_prepend_value</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-value-fixate" title="gst_value_fixate ()">gst_value_fixate</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="returnvalue">GType</span></a>
</td>
<td class="function_name">
<a class="link" href="gstreamer-GstValue.html#gst-flagset-register" title="gst_flagset_register ()">gst_flagset_register</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gstreamer-GstValue.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-FOURCC-FORMAT:CAPS" title="GST_FOURCC_FORMAT">GST_FOURCC_FORMAT</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-TYPE-INT-RANGE:CAPS" title="GST_TYPE_INT_RANGE">GST_TYPE_INT_RANGE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-TYPE-BITMASK:CAPS" title="GST_TYPE_BITMASK">GST_TYPE_BITMASK</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-TYPE-FLAG-SET:CAPS" title="GST_TYPE_FLAG_SET">GST_TYPE_FLAG_SET</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-FLAG-SET-MASK-EXACT:CAPS" title="GST_FLAG_SET_MASK_EXACT">GST_FLAG_SET_MASK_EXACT</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-TYPE-INT64-RANGE:CAPS" title="GST_TYPE_INT64_RANGE">GST_TYPE_INT64_RANGE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-TYPE-DOUBLE-RANGE:CAPS" title="GST_TYPE_DOUBLE_RANGE">GST_TYPE_DOUBLE_RANGE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-TYPE-LIST:CAPS" title="GST_TYPE_LIST">GST_TYPE_LIST</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-TYPE-ARRAY:CAPS" title="GST_TYPE_ARRAY">GST_TYPE_ARRAY</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION:CAPS" title="GST_TYPE_FRACTION">GST_TYPE_FRACTION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION-RANGE:CAPS" title="GST_TYPE_FRACTION_RANGE">GST_TYPE_FRACTION_RANGE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-VALUE-LESS-THAN:CAPS" title="GST_VALUE_LESS_THAN">GST_VALUE_LESS_THAN</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-VALUE-EQUAL:CAPS" title="GST_VALUE_EQUAL">GST_VALUE_EQUAL</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-VALUE-GREATER-THAN:CAPS" title="GST_VALUE_GREATER_THAN">GST_VALUE_GREATER_THAN</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GST-VALUE-UNORDERED:CAPS" title="GST_VALUE_UNORDERED">GST_VALUE_UNORDERED</a></td>
</tr>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="gstreamer-GstValue.html#GstValueTable" title="struct GstValueTable">GstValueTable</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gstreamer-GstValue.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;gst/gst.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="gstreamer-GstValue.description"></a><h2>Description</h2>
<p>GValue implementations specific to GStreamer.</p>
<p>Note that operations on the same <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> from multiple threads may lead to
undefined behaviour.</p>
</div>
<div class="refsect1">
<a name="gstreamer-GstValue.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="GST-MAKE-FOURCC:CAPS"></a><h3>GST_MAKE_FOURCC()</h3>
<pre class="programlisting">#define             GST_MAKE_FOURCC(a,b,c,d)</pre>
<p>Transform four characters into a <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> fourcc value with host
endianness.</p>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1</pre></td>
        <td class="listing_code"><pre class="programlisting">guint32 fourcc <span class="gtkdoc opt">=</span> <span class="function"><a href="gstreamer-GstValue.html#GST-MAKE-FOURCC:CAPS">GST_MAKE_FOURCC</a></span> <span class="gtkdoc opt">(</span><span class="string">&apos;M&apos;</span><span class="gtkdoc opt">,</span> <span class="string">&apos;J&apos;</span><span class="gtkdoc opt">,</span> <span class="string">&apos;P&apos;</span><span class="gtkdoc opt">,</span> <span class="string">&apos;G&apos;</span><span class="gtkdoc opt">);</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p></p>
<div class="refsect3">
<a name="GST-MAKE-FOURCC.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>a</p></td>
<td class="parameter_description"><p>the first character</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>b</p></td>
<td class="parameter_description"><p>the second character</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>c</p></td>
<td class="parameter_description"><p>the third character</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>d</p></td>
<td class="parameter_description"><p>the fourth character</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-STR-FOURCC:CAPS"></a><h3>GST_STR_FOURCC()</h3>
<pre class="programlisting">#define GST_STR_FOURCC(f)               ((guint32)(((f)[0])|((f)[1]&lt;&lt;8)|((f)[2]&lt;&lt;16)|((f)[3]&lt;&lt;24)))
</pre>
<p>Transform an input string into a <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> fourcc value with host
endianness.
Caller is responsible for ensuring the input string consists of at least
four characters.</p>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1</pre></td>
        <td class="listing_code"><pre class="programlisting">guint32 fourcc <span class="gtkdoc opt">=</span> <span class="function"><a href="gstreamer-GstValue.html#GST-STR-FOURCC:CAPS">GST_STR_FOURCC</a></span> <span class="gtkdoc opt">(</span><span class="string">&quot;MJPG&quot;</span><span class="gtkdoc opt">);</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p></p>
<div class="refsect3">
<a name="GST-STR-FOURCC.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>f</p></td>
<td class="parameter_description"><p>a string with at least four characters</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-FOURCC-ARGS:CAPS"></a><h3>GST_FOURCC_ARGS()</h3>
<pre class="programlisting">#define             GST_FOURCC_ARGS(fourcc)</pre>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-INT-RANGE:CAPS"></a><h3>GST_VALUE_HOLDS_INT_RANGE()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_INT_RANGE(x)      ((x) != NULL &amp;&amp; G_VALUE_TYPE(x) == _gst_int_range_type)
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <a class="link" href="gstreamer-GstValue.html#GST-TYPE-INT-RANGE:CAPS" title="GST_TYPE_INT_RANGE"><span class="type">GST_TYPE_INT_RANGE</span></a> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-INT-RANGE.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-int-range"></a><h3>gst_value_set_int_range ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_set_int_range (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> start</code></em>,
                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> end</code></em>);</pre>
<p>Sets <em class="parameter"><code>value</code></em>
 to the range specified by <em class="parameter"><code>start</code></em>
 and <em class="parameter"><code>end</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-set-int-range.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_INT_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>start</p></td>
<td class="parameter_description"><p>the start of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>end</p></td>
<td class="parameter_description"><p>the end of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-int-range-min"></a><h3>gst_value_get_int_range_min ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
gst_value_get_int_range_min (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the minimum of the range specified by <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-int-range-min.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_INT_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-int-range-min.returns"></a><h4>Returns</h4>
<p> the minimum of the range</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-int-range-max"></a><h3>gst_value_get_int_range_max ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
gst_value_get_int_range_max (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the maximum of the range specified by <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-int-range-max.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_INT_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-int-range-max.returns"></a><h4>Returns</h4>
<p> the maximum of the range</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-int-range-step"></a><h3>gst_value_set_int_range_step ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_set_int_range_step (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                              <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> start</code></em>,
                              <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> end</code></em>,
                              <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> step</code></em>);</pre>
<p>Sets <em class="parameter"><code>value</code></em>
 to the range specified by <em class="parameter"><code>start</code></em>
, <em class="parameter"><code>end</code></em>
 and <em class="parameter"><code>step</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-set-int-range-step.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_INT_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>start</p></td>
<td class="parameter_description"><p>the start of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>end</p></td>
<td class="parameter_description"><p>the end of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>step</p></td>
<td class="parameter_description"><p>the step of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-int-range-step"></a><h3>gst_value_get_int_range_step ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
gst_value_get_int_range_step (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the step of the range specified by <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-int-range-step.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_INT_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-int-range-step.returns"></a><h4>Returns</h4>
<p> the step of the range</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-BITMASK:CAPS"></a><h3>GST_VALUE_HOLDS_BITMASK()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_BITMASK(x)      ((x) != NULL &amp;&amp; G_VALUE_TYPE(x) == _gst_bitmask_type)
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <a class="link" href="gstreamer-GstValue.html#GST-TYPE-BITMASK:CAPS" title="GST_TYPE_BITMASK"><span class="type">GST_TYPE_BITMASK</span></a> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-BITMASK.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-bitmask"></a><h3>gst_value_set_bitmask ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_set_bitmask (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                       <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a> bitmask</code></em>);</pre>
<p>Sets <em class="parameter"><code>value</code></em>
 to the bitmask specified by <em class="parameter"><code>bitmask</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-set-bitmask.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-BITMASK:CAPS" title="GST_TYPE_BITMASK"><span class="type">GST_TYPE_BITMASK</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>bitmask</p></td>
<td class="parameter_description"><p>the bitmask</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-bitmask"></a><h3>gst_value_get_bitmask ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint64"><span class="returnvalue">guint64</span></a>
gst_value_get_bitmask (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the bitmask specified by <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-bitmask.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-BITMASK:CAPS" title="GST_TYPE_BITMASK"><span class="type">GST_TYPE_BITMASK</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-bitmask.returns"></a><h4>Returns</h4>
<p> the bitmask.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-FLAG-SET:CAPS"></a><h3>GST_VALUE_HOLDS_FLAG_SET()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_FLAG_SET(x)     (G_TYPE_CHECK_VALUE_TYPE ((x), GST_TYPE_FLAG_SET))
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FLAG-SET:CAPS" title="GST_TYPE_FLAG_SET"><span class="type">GST_TYPE_FLAG_SET</span></a> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-FLAG-SET.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="ix07.html#api-index-1.6">1.6</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gst-structure-get-flagset"></a><h3>gst_structure_get_flagset ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_structure_get_flagset (<em class="parameter"><code>const <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> *structure</code></em>,
                           <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *fieldname</code></em>,
                           <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *value_flags</code></em>,
                           <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *value_mask</code></em>);</pre>
<p>Read the GstFlagSet flags and mask out of the structure into the
provided pointers.</p>
<div class="refsect3">
<a name="gst-structure-get-flagset.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>structure</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>fieldname</p></td>
<td class="parameter_description"><p>the name of a field</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value_flags</p></td>
<td class="parameter_description"><p>a pointer to a guint for the flags field. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>value_mask</p></td>
<td class="parameter_description"><p>a pointer to a guint for the mask field. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-structure-get-flagset.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the values could be set correctly. If there was no field
with <em class="parameter"><code>fieldname</code></em>
or the existing field did not contain a GstFlagSet, this
function returns <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>.</p>
</div>
<p class="since">Since: <a class="link" href="ix07.html#api-index-1.6">1.6</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-flagset-flags"></a><h3>gst_value_get_flagset_flags ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
gst_value_get_flagset_flags (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Retrieve the flags field of a GstFlagSet <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-flagset-flags.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FLAG-SET:CAPS" title="GST_TYPE_FLAG_SET"><span class="type">GST_TYPE_FLAG_SET</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-flagset-flags.returns"></a><h4>Returns</h4>
<p> the flags field of the flagset instance.</p>
</div>
<p class="since">Since: <a class="link" href="ix07.html#api-index-1.6">1.6</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-flagset-mask"></a><h3>gst_value_get_flagset_mask ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
gst_value_get_flagset_mask (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Retrieve the mask field of a GstFlagSet <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-flagset-mask.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FLAG-SET:CAPS" title="GST_TYPE_FLAG_SET"><span class="type">GST_TYPE_FLAG_SET</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-flagset-mask.returns"></a><h4>Returns</h4>
<p> the mask field of the flagset instance.</p>
</div>
<p class="since">Since: <a class="link" href="ix07.html#api-index-1.6">1.6</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-flagset"></a><h3>gst_value_set_flagset ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_set_flagset (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                       <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> flags</code></em>,
                       <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> mask</code></em>);</pre>
<p>Sets <em class="parameter"><code>value</code></em>
 to the flags and mask values provided in <em class="parameter"><code>flags</code></em>
 and <em class="parameter"><code>mask</code></em>
.
The <em class="parameter"><code>flags</code></em>
 value indicates the values of flags, the <em class="parameter"><code>mask</code></em>
 represents
which bits in the flag value have been set, and which are "don't care"</p>
<div class="refsect3">
<a name="gst-value-set-flagset.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FLAG-SET:CAPS" title="GST_TYPE_FLAG_SET"><code class="literal">GST_TYPE_FLAG_SET</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flags</p></td>
<td class="parameter_description"><p>The value of the flags set or unset</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>mask</p></td>
<td class="parameter_description"><p>The mask indicate which flags bits must match for comparisons</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="ix07.html#api-index-1.6">1.6</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-INT64-RANGE:CAPS"></a><h3>GST_VALUE_HOLDS_INT64_RANGE()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_INT64_RANGE(x)    ((x) != NULL &amp;&amp; G_VALUE_TYPE(x) == _gst_int64_range_type)
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <a class="link" href="gstreamer-GstValue.html#GST-TYPE-INT64-RANGE:CAPS" title="GST_TYPE_INT64_RANGE"><span class="type">GST_TYPE_INT64_RANGE</span></a> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-INT64-RANGE.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-int64-range"></a><h3>gst_value_set_int64_range ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_set_int64_range (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                           <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="type">gint64</span></a> start</code></em>,
                           <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="type">gint64</span></a> end</code></em>);</pre>
<p>Sets <em class="parameter"><code>value</code></em>
 to the range specified by <em class="parameter"><code>start</code></em>
 and <em class="parameter"><code>end</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-set-int64-range.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_INT64_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>start</p></td>
<td class="parameter_description"><p>the start of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>end</p></td>
<td class="parameter_description"><p>the end of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-int64-range-min"></a><h3>gst_value_get_int64_range_min ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="returnvalue">gint64</span></a>
gst_value_get_int64_range_min (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the minimum of the range specified by <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-int64-range-min.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_INT64_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-int64-range-min.returns"></a><h4>Returns</h4>
<p> the minimum of the range</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-int64-range-max"></a><h3>gst_value_get_int64_range_max ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="returnvalue">gint64</span></a>
gst_value_get_int64_range_max (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the maximum of the range specified by <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-int64-range-max.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_INT64_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-int64-range-max.returns"></a><h4>Returns</h4>
<p> the maximum of the range</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-int64-range-step"></a><h3>gst_value_set_int64_range_step ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_set_int64_range_step (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="type">gint64</span></a> start</code></em>,
                                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="type">gint64</span></a> end</code></em>,
                                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="type">gint64</span></a> step</code></em>);</pre>
<p>Sets <em class="parameter"><code>value</code></em>
 to the range specified by <em class="parameter"><code>start</code></em>
, <em class="parameter"><code>end</code></em>
 and <em class="parameter"><code>step</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-set-int64-range-step.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_INT64_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>start</p></td>
<td class="parameter_description"><p>the start of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>end</p></td>
<td class="parameter_description"><p>the end of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>step</p></td>
<td class="parameter_description"><p>the step of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-int64-range-step"></a><h3>gst_value_get_int64_range_step ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="returnvalue">gint64</span></a>
gst_value_get_int64_range_step (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the step of the range specified by <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-int64-range-step.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_INT64_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-int64-range-step.returns"></a><h4>Returns</h4>
<p> the step of the range</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-DOUBLE-RANGE:CAPS"></a><h3>GST_VALUE_HOLDS_DOUBLE_RANGE()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_DOUBLE_RANGE(x)   ((x) != NULL &amp;&amp; G_VALUE_TYPE(x) == _gst_double_range_type)
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <a class="link" href="gstreamer-GstValue.html#GST-TYPE-DOUBLE-RANGE:CAPS" title="GST_TYPE_DOUBLE_RANGE"><span class="type">GST_TYPE_DOUBLE_RANGE</span></a> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-DOUBLE-RANGE.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-double-range"></a><h3>gst_value_set_double_range ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_set_double_range (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                            <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> start</code></em>,
                            <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> end</code></em>);</pre>
<p>Sets <em class="parameter"><code>value</code></em>
 to the range specified by <em class="parameter"><code>start</code></em>
 and <em class="parameter"><code>end</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-set-double-range.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_DOUBLE_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>start</p></td>
<td class="parameter_description"><p>the start of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>end</p></td>
<td class="parameter_description"><p>the end of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-double-range-min"></a><h3>gst_value_get_double_range_min ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a>
gst_value_get_double_range_min (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the minimum of the range specified by <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-double-range-min.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_DOUBLE_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-double-range-min.returns"></a><h4>Returns</h4>
<p> the minimum of the range</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-double-range-max"></a><h3>gst_value_get_double_range_max ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a>
gst_value_get_double_range_max (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the maximum of the range specified by <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-double-range-max.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_DOUBLE_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-double-range-max.returns"></a><h4>Returns</h4>
<p> the maximum of the range</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-LIST:CAPS"></a><h3>GST_VALUE_HOLDS_LIST()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_LIST(x)         ((x) != NULL &amp;&amp; G_VALUE_TYPE(x) == _gst_value_list_type)
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <a class="link" href="gstreamer-GstValue.html#GST-TYPE-LIST:CAPS" title="GST_TYPE_LIST"><span class="type">GST_TYPE_LIST</span></a> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-LIST.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-ARRAY:CAPS"></a><h3>GST_VALUE_HOLDS_ARRAY()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_ARRAY(x)        ((x) != NULL &amp;&amp; G_VALUE_TYPE(x) == _gst_value_array_type)
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <a class="link" href="gstreamer-GstValue.html#GST-TYPE-ARRAY:CAPS" title="GST_TYPE_ARRAY"><span class="type">GST_TYPE_ARRAY</span></a> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-ARRAY.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-list-append-value"></a><h3>gst_value_list_append_value ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_list_append_value (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                             <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *append_value</code></em>);</pre>
<p>Appends <em class="parameter"><code>append_value</code></em>
 to the GstValueList in <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-list-append-value.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> of type <a class="link" href="gstreamer-GstValue.html#GST-TYPE-LIST:CAPS" title="GST_TYPE_LIST"><span class="type">GST_TYPE_LIST</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>append_value</p></td>
<td class="parameter_description"><p>the value to append. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-list-append-and-take-value"></a><h3>gst_value_list_append_and_take_value ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_list_append_and_take_value (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                                      <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *append_value</code></em>);</pre>
<p>Appends <em class="parameter"><code>append_value</code></em>
 to the GstValueList in <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-list-append-and-take-value.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> of type <a class="link" href="gstreamer-GstValue.html#GST-TYPE-LIST:CAPS" title="GST_TYPE_LIST"><span class="type">GST_TYPE_LIST</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>append_value</p></td>
<td class="parameter_description"><p>the value to append. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="ix10.html#api-index-1.2">1.2</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-list-prepend-value"></a><h3>gst_value_list_prepend_value ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_list_prepend_value (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                              <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *prepend_value</code></em>);</pre>
<p>Prepends <em class="parameter"><code>prepend_value</code></em>
 to the GstValueList in <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-list-prepend-value.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> of type <a class="link" href="gstreamer-GstValue.html#GST-TYPE-LIST:CAPS" title="GST_TYPE_LIST"><span class="type">GST_TYPE_LIST</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>prepend_value</p></td>
<td class="parameter_description"><p>the value to prepend</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-list-concat"></a><h3>gst_value_list_concat ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_list_concat (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *dest</code></em>,
                       <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value1</code></em>,
                       <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value2</code></em>);</pre>
<p>Concatenates copies of <em class="parameter"><code>value1</code></em>
 and <em class="parameter"><code>value2</code></em>
 into a list.  Values that are not
of type <a class="link" href="gstreamer-GstValue.html#GST-TYPE-LIST:CAPS" title="GST_TYPE_LIST"><span class="type">GST_TYPE_LIST</span></a> are treated as if they were lists of length 1.
<em class="parameter"><code>dest</code></em>
 will be initialized to the type <a class="link" href="gstreamer-GstValue.html#GST-TYPE-LIST:CAPS" title="GST_TYPE_LIST"><span class="type">GST_TYPE_LIST</span></a>.</p>
<div class="refsect3">
<a name="gst-value-list-concat.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>dest</p></td>
<td class="parameter_description"><p>an uninitialized <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to take the result. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Out parameter, where caller must allocate storage."><span class="acronym">out caller-allocates</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>value1</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value2</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-list-merge"></a><h3>gst_value_list_merge ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_list_merge (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *dest</code></em>,
                      <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value1</code></em>,
                      <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value2</code></em>);</pre>
<p>Merges copies of <em class="parameter"><code>value1</code></em>
 and <em class="parameter"><code>value2</code></em>
.  Values that are not
of type <a class="link" href="gstreamer-GstValue.html#GST-TYPE-LIST:CAPS" title="GST_TYPE_LIST"><span class="type">GST_TYPE_LIST</span></a> are treated as if they were lists of length 1.</p>
<p>The result will be put into <em class="parameter"><code>dest</code></em>
 and will either be a list that will not
contain any duplicates, or a non-list type (if <em class="parameter"><code>value1</code></em>
 and <em class="parameter"><code>value2</code></em>

were equal).</p>
<div class="refsect3">
<a name="gst-value-list-merge.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>dest</p></td>
<td class="parameter_description"><p>an uninitialized <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to take the result. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Out parameter, where caller must allocate storage."><span class="acronym">out caller-allocates</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>value1</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value2</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-list-get-size"></a><h3>gst_value_list_get_size ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
gst_value_list_get_size (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the number of values contained in <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-list-get-size.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> of type <a class="link" href="gstreamer-GstValue.html#GST-TYPE-LIST:CAPS" title="GST_TYPE_LIST"><span class="type">GST_TYPE_LIST</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-list-get-size.returns"></a><h4>Returns</h4>
<p> the number of values</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-list-get-value"></a><h3>gst_value_list_get_value ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="returnvalue">GValue</span></a> *
gst_value_list_get_value (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                          <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> index</code></em>);</pre>
<p>Gets the value that is a member of the list contained in <em class="parameter"><code>value</code></em>
 and
has the index <em class="parameter"><code>index</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-list-get-value.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> of type <a class="link" href="gstreamer-GstValue.html#GST-TYPE-LIST:CAPS" title="GST_TYPE_LIST"><span class="type">GST_TYPE_LIST</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>index</p></td>
<td class="parameter_description"><p>index of value to get from the list</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-list-get-value.returns"></a><h4>Returns</h4>
<p>the value at the given index. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-FRACTION:CAPS"></a><h3>GST_VALUE_HOLDS_FRACTION()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_FRACTION(x)     ((x) != NULL &amp;&amp; G_VALUE_TYPE(x) == _gst_fraction_type)
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION:CAPS" title="GST_TYPE_FRACTION"><span class="type">GST_TYPE_FRACTION</span></a> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-FRACTION.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-fraction"></a><h3>gst_value_set_fraction ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_set_fraction (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                        <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> numerator</code></em>,
                        <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> denominator</code></em>);</pre>
<p>Sets <em class="parameter"><code>value</code></em>
 to the fraction specified by <em class="parameter"><code>numerator</code></em>
 over <em class="parameter"><code>denominator</code></em>
.
The fraction gets reduced to the smallest numerator and denominator,
and if necessary the sign is moved to the numerator.</p>
<div class="refsect3">
<a name="gst-value-set-fraction.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION:CAPS" title="GST_TYPE_FRACTION"><span class="type">GST_TYPE_FRACTION</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>numerator</p></td>
<td class="parameter_description"><p>the numerator of the fraction</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>denominator</p></td>
<td class="parameter_description"><p>the denominator of the fraction</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-fraction-numerator"></a><h3>gst_value_get_fraction_numerator ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
gst_value_get_fraction_numerator (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the numerator of the fraction specified by <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-fraction-numerator.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION:CAPS" title="GST_TYPE_FRACTION"><span class="type">GST_TYPE_FRACTION</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-fraction-numerator.returns"></a><h4>Returns</h4>
<p> the numerator of the fraction.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-fraction-denominator"></a><h3>gst_value_get_fraction_denominator ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
gst_value_get_fraction_denominator (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the denominator of the fraction specified by <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-fraction-denominator.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION:CAPS" title="GST_TYPE_FRACTION"><span class="type">GST_TYPE_FRACTION</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-fraction-denominator.returns"></a><h4>Returns</h4>
<p> the denominator of the fraction.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-fraction-multiply"></a><h3>gst_value_fraction_multiply ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_value_fraction_multiply (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *product</code></em>,
                             <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *factor1</code></em>,
                             <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *factor2</code></em>);</pre>
<p>Multiplies the two <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> items containing a <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION:CAPS" title="GST_TYPE_FRACTION"><span class="type">GST_TYPE_FRACTION</span></a> and sets
<em class="parameter"><code>product</code></em>
 to the product of the two fractions.</p>
<div class="refsect3">
<a name="gst-value-fraction-multiply.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>product</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION:CAPS" title="GST_TYPE_FRACTION"><span class="type">GST_TYPE_FRACTION</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>factor1</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION:CAPS" title="GST_TYPE_FRACTION"><span class="type">GST_TYPE_FRACTION</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>factor2</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION:CAPS" title="GST_TYPE_FRACTION"><span class="type">GST_TYPE_FRACTION</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-fraction-multiply.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> in case of an error (like integer overflow), <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> otherwise.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-fraction-subtract"></a><h3>gst_value_fraction_subtract ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_value_fraction_subtract (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *dest</code></em>,
                             <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *minuend</code></em>,
                             <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *subtrahend</code></em>);</pre>
<p>Subtracts the <em class="parameter"><code>subtrahend</code></em>
 from the <em class="parameter"><code>minuend</code></em>
 and sets <em class="parameter"><code>dest</code></em>
 to the result.</p>
<div class="refsect3">
<a name="gst-value-fraction-subtract.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>dest</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION:CAPS" title="GST_TYPE_FRACTION"><span class="type">GST_TYPE_FRACTION</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>minuend</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION:CAPS" title="GST_TYPE_FRACTION"><span class="type">GST_TYPE_FRACTION</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>subtrahend</p></td>
<td class="parameter_description"><p>a GValue initialized to <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION:CAPS" title="GST_TYPE_FRACTION"><span class="type">GST_TYPE_FRACTION</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-fraction-subtract.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> in case of an error (like integer overflow), <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> otherwise.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-FRACTION-RANGE:CAPS"></a><h3>GST_VALUE_HOLDS_FRACTION_RANGE()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_FRACTION_RANGE(x) ((x) != NULL &amp;&amp; G_VALUE_TYPE(x) == _gst_fraction_range_type)
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FRACTION-RANGE:CAPS" title="GST_TYPE_FRACTION_RANGE"><span class="type">GST_TYPE_FRACTION_RANGE</span></a> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-FRACTION-RANGE.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-fraction-range"></a><h3>gst_value_set_fraction_range ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_set_fraction_range (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                              <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *start</code></em>,
                              <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *end</code></em>);</pre>
<p>Sets <em class="parameter"><code>value</code></em>
 to the range specified by <em class="parameter"><code>start</code></em>
 and <em class="parameter"><code>end</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-set-fraction-range.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_FRACTION_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>start</p></td>
<td class="parameter_description"><p>the start of the range (a GST_TYPE_FRACTION GValue)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>end</p></td>
<td class="parameter_description"><p>the end of the range (a GST_TYPE_FRACTION GValue)</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-fraction-range-min"></a><h3>gst_value_get_fraction_range_min ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="returnvalue">GValue</span></a> *
gst_value_get_fraction_range_min (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the minimum of the range specified by <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-fraction-range-min.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_FRACTION_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-fraction-range-min.returns"></a><h4>Returns</h4>
<p>the minimum of the range. </p>
<p><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-fraction-range-max"></a><h3>gst_value_get_fraction_range_max ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="returnvalue">GValue</span></a> *
gst_value_get_fraction_range_max (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the maximum of the range specified by <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-fraction-range-max.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_FRACTION_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-fraction-range-max.returns"></a><h4>Returns</h4>
<p>the maximum of the range. </p>
<p><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-fraction-range-full"></a><h3>gst_value_set_fraction_range_full ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_set_fraction_range_full (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                                   <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> numerator_start</code></em>,
                                   <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> denominator_start</code></em>,
                                   <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> numerator_end</code></em>,
                                   <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> denominator_end</code></em>);</pre>
<p>Sets <em class="parameter"><code>value</code></em>
 to the range specified by <em class="parameter"><code>numerator_start</code></em>
/<em class="parameter"><code>denominator_start</code></em>

and <em class="parameter"><code>numerator_end</code></em>
/<em class="parameter"><code>denominator_end</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-set-fraction-range-full.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_FRACTION_RANGE</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>numerator_start</p></td>
<td class="parameter_description"><p>the numerator start of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>denominator_start</p></td>
<td class="parameter_description"><p>the denominator start of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>numerator_end</p></td>
<td class="parameter_description"><p>the numerator end of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>denominator_end</p></td>
<td class="parameter_description"><p>the denominator end of the range</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-DATE-TIME:CAPS"></a><h3>GST_VALUE_HOLDS_DATE_TIME()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_DATE_TIME(x)    ((x) != NULL &amp;&amp; G_VALUE_TYPE(x) == _gst_date_time_type)
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <a class="link" href="GstDateTime.html#GST-TYPE-DATE-TIME:CAPS" title="GST_TYPE_DATE_TIME"><span class="type">GST_TYPE_DATE_TIME</span></a> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-DATE-TIME.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-CAPS"></a><h3>GST_VALUE_HOLDS_CAPS()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_CAPS(x)         ((x) != NULL &amp;&amp; G_VALUE_TYPE(x) == _gst_caps_type)
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <span class="type">GST_TYPE_CAPS</span> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-CAPS.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-caps"></a><h3>gst_value_set_caps ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_set_caps (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                    <em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre>
<p>Sets the contents of <em class="parameter"><code>value</code></em>
 to <em class="parameter"><code>caps</code></em>
. A reference to the
provided <em class="parameter"><code>caps</code></em>
 will be taken by the <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-set-caps.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_CAPS</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>caps</p></td>
<td class="parameter_description"><p>the caps to set the value to. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-caps"></a><h3>gst_value_get_caps ()</h3>
<pre class="programlisting">const <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> *
gst_value_get_caps (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the contents of <em class="parameter"><code>value</code></em>
. The reference count of the returned
<a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> will not be modified, therefore the caller must take one
before getting rid of the <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-caps.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_CAPS</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-caps.returns"></a><h4>Returns</h4>
<p>the contents of <em class="parameter"><code>value</code></em>
. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-CAPS-FEATURES:CAPS"></a><h3>GST_VALUE_HOLDS_CAPS_FEATURES()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_CAPS_FEATURES(x)        (G_VALUE_HOLDS((x), _gst_caps_features_type))
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <span class="type">GST_TYPE_CAPS_FEATURES</span> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-CAPS-FEATURES.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-caps-features"></a><h3>gst_value_set_caps_features ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_set_caps_features (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                             <em class="parameter"><code>const <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> *features</code></em>);</pre>
<p>Sets the contents of <em class="parameter"><code>value</code></em>
 to <em class="parameter"><code>features</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-set-caps-features.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_CAPS_FEATURES</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>features</p></td>
<td class="parameter_description"><p>the features to set the value to</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-caps-features"></a><h3>gst_value_get_caps_features ()</h3>
<pre class="programlisting">const <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="returnvalue">GstCapsFeatures</span></a> *
gst_value_get_caps_features (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the contents of <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-caps-features.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_CAPS_FEATURES</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-caps-features.returns"></a><h4>Returns</h4>
<p>the contents of <em class="parameter"><code>value</code></em>
. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-STRUCTURE:CAPS"></a><h3>GST_VALUE_HOLDS_STRUCTURE()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_STRUCTURE(x)            (G_VALUE_HOLDS((x), _gst_structure_type))
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <span class="type">GST_TYPE_STRUCTURE</span> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-STRUCTURE.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-structure"></a><h3>gst_value_set_structure ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_set_structure (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                         <em class="parameter"><code>const <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> *structure</code></em>);</pre>
<p>Sets the contents of <em class="parameter"><code>value</code></em>
 to <em class="parameter"><code>structure</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-set-structure.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_STRUCTURE</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>structure</p></td>
<td class="parameter_description"><p>the structure to set the value to</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-structure"></a><h3>gst_value_get_structure ()</h3>
<pre class="programlisting">const <a class="link" href="GstStructure.html" title="GstStructure"><span class="returnvalue">GstStructure</span></a> *
gst_value_get_structure (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the contents of <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-structure.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a GValue initialized to GST_TYPE_STRUCTURE</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-structure.returns"></a><h4>Returns</h4>
<p>the contents of <em class="parameter"><code>value</code></em>
. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-BUFFER:CAPS"></a><h3>GST_VALUE_HOLDS_BUFFER()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_BUFFER(x)       ((x) != NULL &amp;&amp; G_VALUE_TYPE(x) == _gst_buffer_type)
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <span class="type">GST_TYPE_BUFFER</span> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-BUFFER.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-buffer"></a><h3>gst_value_get_buffer()</h3>
<pre class="programlisting">#define         gst_value_get_buffer(v)         GST_BUFFER_CAST (g_value_get_boxed(v))
</pre>
<p>Receives a <a class="link" href="GstBuffer.html" title="GstBuffer"><span class="type">GstBuffer</span></a> as the value of <em class="parameter"><code>v</code></em>
. Does not return a reference to
the buffer, so the pointer is only valid for as long as the caller owns
a reference to <em class="parameter"><code>v</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-buffer.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>v</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to query</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-buffer.returns"></a><h4>Returns</h4>
<p>buffer. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-buffer"></a><h3>gst_value_set_buffer()</h3>
<pre class="programlisting">#define         gst_value_set_buffer(v,b)       g_value_set_boxed((v),(b))
</pre>
<p>Sets <em class="parameter"><code>b</code></em>
 as the value of <em class="parameter"><code>v</code></em>
.  Caller retains reference to buffer.</p>
<div class="refsect3">
<a name="gst-value-set-buffer.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>v</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to receive the data</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>b</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstBuffer.html" title="GstBuffer"><span class="type">GstBuffer</span></a> to assign to the GstValue. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-take-buffer"></a><h3>gst_value_take_buffer()</h3>
<pre class="programlisting">#define         gst_value_take_buffer(v,b)      g_value_take_boxed(v,(b))
</pre>
<p>Sets <em class="parameter"><code>b</code></em>
 as the value of <em class="parameter"><code>v</code></em>
.  Caller gives away reference to buffer.</p>
<div class="refsect3">
<a name="gst-value-take-buffer.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>v</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to receive the data</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>b</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstBuffer.html" title="GstBuffer"><span class="type">GstBuffer</span></a> to assign to the GstValue. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-HOLDS-SAMPLE:CAPS"></a><h3>GST_VALUE_HOLDS_SAMPLE()</h3>
<pre class="programlisting">#define GST_VALUE_HOLDS_SAMPLE(x)       ((x) != NULL &amp;&amp; G_VALUE_TYPE(x) == _gst_sample_type)
</pre>
<p>Checks if the given <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> contains a <span class="type">GST_TYPE_SAMPLE</span> value.</p>
<div class="refsect3">
<a name="GST-VALUE-HOLDS-SAMPLE.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-get-sample"></a><h3>gst_value_get_sample()</h3>
<pre class="programlisting">#define         gst_value_get_sample(v)         GST_SAMPLE_CAST (g_value_get_boxed(v))
</pre>
<p>Receives a <a class="link" href="GstSample.html" title="GstSample"><span class="type">GstSample</span></a> as the value of <em class="parameter"><code>v</code></em>
. Does not return a reference to
the sample, so the pointer is only valid for as long as the caller owns
a reference to <em class="parameter"><code>v</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-get-sample.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>v</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to query</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-get-sample.returns"></a><h4>Returns</h4>
<p>sample. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-set-sample"></a><h3>gst_value_set_sample()</h3>
<pre class="programlisting">#define         gst_value_set_sample(v,b)       g_value_set_boxed((v),(b))
</pre>
<p>Sets <em class="parameter"><code>b</code></em>
 as the value of <em class="parameter"><code>v</code></em>
.  Caller retains reference to sample.</p>
<div class="refsect3">
<a name="gst-value-set-sample.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>v</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to receive the data</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>b</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstSample.html" title="GstSample"><span class="type">GstSample</span></a> to assign to the GstValue. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-take-sample"></a><h3>gst_value_take_sample()</h3>
<pre class="programlisting">#define         gst_value_take_sample(v,b)      g_value_take_boxed(v,(b))
</pre>
<p>Sets <em class="parameter"><code>b</code></em>
 as the value of <em class="parameter"><code>v</code></em>
.  Caller gives away reference to sample.</p>
<div class="refsect3">
<a name="gst-value-take-sample.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>v</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to receive the data</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>b</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstSample.html" title="GstSample"><span class="type">GstSample</span></a> to assign to the GstValue. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstValueCompareFunc"></a><h3>GstValueCompareFunc ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
<span class="c_punctuation">(</span>*GstValueCompareFunc<span class="c_punctuation">)</span> (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value1</code></em>,
                        <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value2</code></em>);</pre>
<p>Used together with <a class="link" href="gstreamer-GstValue.html#gst-value-compare" title="gst_value_compare ()"><code class="function">gst_value_compare()</code></a> to compare <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> items.</p>
<div class="refsect3">
<a name="GstValueCompareFunc.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value1</p></td>
<td class="parameter_description"><p>first value for comparison</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value2</p></td>
<td class="parameter_description"><p>second value for comparison</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="GstValueCompareFunc.returns"></a><h4>Returns</h4>
<p> one of GST_VALUE_LESS_THAN, GST_VALUE_EQUAL, GST_VALUE_GREATER_THAN
or GST_VALUE_UNORDERED</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstValueSerializeFunc"></a><h3>GstValueSerializeFunc ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
<span class="c_punctuation">(</span>*GstValueSerializeFunc<span class="c_punctuation">)</span> (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value1</code></em>);</pre>
<p>Used by <a class="link" href="gstreamer-GstValue.html#gst-value-serialize" title="gst_value_serialize ()"><code class="function">gst_value_serialize()</code></a> to obtain a non-binary form of the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a>.</p>
<p>Free-function: g_free</p>
<div class="refsect3">
<a name="GstValueSerializeFunc.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value1</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="GstValueSerializeFunc.returns"></a><h4>Returns</h4>
<p>the string representation of the value. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstValueDeserializeFunc"></a><h3>GstValueDeserializeFunc ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
<span class="c_punctuation">(</span>*GstValueDeserializeFunc<span class="c_punctuation">)</span> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *dest</code></em>,
                            <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *s</code></em>);</pre>
<p>Used by <a class="link" href="gstreamer-GstValue.html#gst-value-deserialize" title="gst_value_deserialize ()"><code class="function">gst_value_deserialize()</code></a> to parse a non-binary form into the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a>.</p>
<div class="refsect3">
<a name="GstValueDeserializeFunc.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>dest</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>s</p></td>
<td class="parameter_description"><p>a string</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="GstValueDeserializeFunc.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> for success</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-is-fixed"></a><h3>gst_value_is_fixed ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_value_is_fixed (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Tests if the given GValue, if available in a GstStructure (or any other
container) contains a "fixed" (which means: one value) or an "unfixed"
(which means: multiple possible values, such as data lists or data
ranges) value.</p>
<div class="refsect3">
<a name="gst-value-is-fixed.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-is-fixed.returns"></a><h4>Returns</h4>
<p> true if the value is "fixed".</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-register"></a><h3>gst_value_register ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_register (<em class="parameter"><code>const <a class="link" href="gstreamer-GstValue.html#GstValueTable" title="struct GstValueTable"><span class="type">GstValueTable</span></a> *table</code></em>);</pre>
<p>Registers functions to perform calculations on <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> items of a given
type. Each type can only be added once.</p>
<div class="refsect3">
<a name="gst-value-register.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>table</p></td>
<td class="parameter_description"><p>structure containing functions to register</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-init-and-copy"></a><h3>gst_value_init_and_copy ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_init_and_copy (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *dest</code></em>,
                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *src</code></em>);</pre>
<p>Initialises the target value to be of the same type as source and then copies
the contents from source to target.</p>
<div class="refsect3">
<a name="gst-value-init-and-copy.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>dest</p></td>
<td class="parameter_description"><p>the target value. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Out parameter, where caller must allocate storage."><span class="acronym">out caller-allocates</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>src</p></td>
<td class="parameter_description"><p>the source value</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-serialize"></a><h3>gst_value_serialize ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
gst_value_serialize (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>tries to transform the given <em class="parameter"><code>value</code></em>
 into a string representation that allows
getting back this string later on using <a class="link" href="gstreamer-GstValue.html#gst-value-deserialize" title="gst_value_deserialize ()"><code class="function">gst_value_deserialize()</code></a>.</p>
<p>Free-function: g_free</p>
<div class="refsect3">
<a name="gst-value-serialize.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to serialize</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-serialize.returns"></a><h4>Returns</h4>
<p>the serialization for <em class="parameter"><code>value</code></em>
or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if none exists. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>][<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-deserialize"></a><h3>gst_value_deserialize ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_value_deserialize (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *dest</code></em>,
                       <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *src</code></em>);</pre>
<p>Tries to deserialize a string into the type specified by the given GValue.
If the operation succeeds, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> is returned, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</p>
<div class="refsect3">
<a name="gst-value-deserialize.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>dest</p></td>
<td class="parameter_description"><p><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to fill with contents of
deserialization. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Out parameter, where caller must allocate storage."><span class="acronym">out caller-allocates</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>src</p></td>
<td class="parameter_description"><p>string to deserialize</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-deserialize.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> on success</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-compare"></a><h3>gst_value_compare ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
gst_value_compare (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value1</code></em>,
                   <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value2</code></em>);</pre>
<p>Compares <em class="parameter"><code>value1</code></em>
 and <em class="parameter"><code>value2</code></em>
.  If <em class="parameter"><code>value1</code></em>
 and <em class="parameter"><code>value2</code></em>
 cannot be
compared, the function returns GST_VALUE_UNORDERED.  Otherwise,
if <em class="parameter"><code>value1</code></em>
 is greater than <em class="parameter"><code>value2</code></em>
, GST_VALUE_GREATER_THAN is returned.
If <em class="parameter"><code>value1</code></em>
 is less than <em class="parameter"><code>value2</code></em>
, GST_VALUE_LESS_THAN is returned.
If the values are equal, GST_VALUE_EQUAL is returned.</p>
<div class="refsect3">
<a name="gst-value-compare.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value1</p></td>
<td class="parameter_description"><p>a value to compare</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value2</p></td>
<td class="parameter_description"><p>another value to compare</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-compare.returns"></a><h4>Returns</h4>
<p> comparison result</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-can-compare"></a><h3>gst_value_can_compare ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_value_can_compare (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value1</code></em>,
                       <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value2</code></em>);</pre>
<p>Determines if <em class="parameter"><code>value1</code></em>
 and <em class="parameter"><code>value2</code></em>
 can be compared.</p>
<div class="refsect3">
<a name="gst-value-can-compare.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value1</p></td>
<td class="parameter_description"><p>a value to compare</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value2</p></td>
<td class="parameter_description"><p>another value to compare</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-can-compare.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the values can be compared</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-union"></a><h3>gst_value_union ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_value_union (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *dest</code></em>,
                 <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value1</code></em>,
                 <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value2</code></em>);</pre>
<p>Creates a GValue corresponding to the union of <em class="parameter"><code>value1</code></em>
 and <em class="parameter"><code>value2</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-union.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>dest</p></td>
<td class="parameter_description"><p>the destination value. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Out parameter, where caller must allocate storage."><span class="acronym">out caller-allocates</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>value1</p></td>
<td class="parameter_description"><p>a value to union</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value2</p></td>
<td class="parameter_description"><p>another value to union</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-union.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the union succeeded.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-can-union"></a><h3>gst_value_can_union ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_value_can_union (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value1</code></em>,
                     <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value2</code></em>);</pre>
<p>Determines if <em class="parameter"><code>value1</code></em>
 and <em class="parameter"><code>value2</code></em>
 can be non-trivially unioned.
Any two values can be trivially unioned by adding both of them
to a GstValueList.  However, certain types have the possibility
to be unioned in a simpler way.  For example, an integer range
and an integer can be unioned if the integer is a subset of the
integer range.  If there is the possibility that two values can
be unioned, this function returns <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>.</p>
<div class="refsect3">
<a name="gst-value-can-union.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value1</p></td>
<td class="parameter_description"><p>a value to union</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value2</p></td>
<td class="parameter_description"><p>another value to union</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-can-union.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if there is a function allowing the two values to
be unioned.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-subtract"></a><h3>gst_value_subtract ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_value_subtract (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *dest</code></em>,
                    <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *minuend</code></em>,
                    <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *subtrahend</code></em>);</pre>
<p>Subtracts <em class="parameter"><code>subtrahend</code></em>
 from <em class="parameter"><code>minuend</code></em>
 and stores the result in <em class="parameter"><code>dest</code></em>
.
Note that this means subtraction as in sets, not as in mathematics.</p>
<div class="refsect3">
<a name="gst-value-subtract.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>dest</p></td>
<td class="parameter_description"><p>the destination value
for the result if the subtraction is not empty. May be <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>,
in which case the resulting set will not be computed, which can
give a fair speedup. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Out parameter, where caller must allocate storage."><span class="acronym">out caller-allocates</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>minuend</p></td>
<td class="parameter_description"><p>the value to subtract from</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>subtrahend</p></td>
<td class="parameter_description"><p>the value to subtract</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-subtract.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the subtraction is not empty</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-can-subtract"></a><h3>gst_value_can_subtract ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_value_can_subtract (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *minuend</code></em>,
                        <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *subtrahend</code></em>);</pre>
<p>Checks if it's possible to subtract <em class="parameter"><code>subtrahend</code></em>
 from <em class="parameter"><code>minuend</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-can-subtract.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>minuend</p></td>
<td class="parameter_description"><p>the value to subtract from</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>subtrahend</p></td>
<td class="parameter_description"><p>the value to subtract</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-can-subtract.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if a subtraction is possible</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-intersect"></a><h3>gst_value_intersect ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_value_intersect (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *dest</code></em>,
                     <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value1</code></em>,
                     <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value2</code></em>);</pre>
<p>Calculates the intersection of two values.  If the values have
a non-empty intersection, the value representing the intersection
is placed in <em class="parameter"><code>dest</code></em>
, unless <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.  If the intersection is non-empty,
<em class="parameter"><code>dest</code></em>
 is not modified.</p>
<div class="refsect3">
<a name="gst-value-intersect.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>dest</p></td>
<td class="parameter_description"><p>a uninitialized <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> that will hold the calculated
intersection value. May be <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if the resulting set if not
needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Out parameter, where caller must allocate storage."><span class="acronym">out caller-allocates</span></acronym>][<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>value1</p></td>
<td class="parameter_description"><p>a value to intersect</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value2</p></td>
<td class="parameter_description"><p>another value to intersect</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-intersect.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the intersection is non-empty</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-can-intersect"></a><h3>gst_value_can_intersect ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_value_can_intersect (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value1</code></em>,
                         <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value2</code></em>);</pre>
<p>Determines if intersecting two values will produce a valid result.
Two values will produce a valid intersection if they have the same
type.</p>
<div class="refsect3">
<a name="gst-value-can-intersect.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value1</p></td>
<td class="parameter_description"><p>a value to intersect</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value2</p></td>
<td class="parameter_description"><p>another value to intersect</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-can-intersect.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the values can intersect</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-is-subset"></a><h3>gst_value_is_subset ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_value_is_subset (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value1</code></em>,
                     <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value2</code></em>);</pre>
<p>Check that <em class="parameter"><code>value1</code></em>
 is a subset of <em class="parameter"><code>value2</code></em>
.</p>
<p>Return: <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> is <em class="parameter"><code>value1</code></em>
 is a subset of <em class="parameter"><code>value2</code></em>
</p>
<div class="refsect3">
<a name="gst-value-is-subset.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value1</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value2</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-array-append-value"></a><h3>gst_value_array_append_value ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_array_append_value (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                              <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *append_value</code></em>);</pre>
<p>Appends <em class="parameter"><code>append_value</code></em>
 to the GstValueArray in <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-array-append-value.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> of type <a class="link" href="gstreamer-GstValue.html#GST-TYPE-ARRAY:CAPS" title="GST_TYPE_ARRAY"><span class="type">GST_TYPE_ARRAY</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>append_value</p></td>
<td class="parameter_description"><p>the value to append</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-array-append-and-take-value"></a><h3>gst_value_array_append_and_take_value ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_array_append_and_take_value (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                                       <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *append_value</code></em>);</pre>
<p>Appends <em class="parameter"><code>append_value</code></em>
 to the GstValueArray in <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-array-append-and-take-value.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> of type <a class="link" href="gstreamer-GstValue.html#GST-TYPE-ARRAY:CAPS" title="GST_TYPE_ARRAY"><span class="type">GST_TYPE_ARRAY</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>append_value</p></td>
<td class="parameter_description"><p>the value to append. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="ix10.html#api-index-1.2">1.2</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-array-get-size"></a><h3>gst_value_array_get_size ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
gst_value_array_get_size (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Gets the number of values contained in <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-array-get-size.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> of type <a class="link" href="gstreamer-GstValue.html#GST-TYPE-ARRAY:CAPS" title="GST_TYPE_ARRAY"><span class="type">GST_TYPE_ARRAY</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-array-get-size.returns"></a><h4>Returns</h4>
<p> the number of values</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-array-get-value"></a><h3>gst_value_array_get_value ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="returnvalue">GValue</span></a> *
gst_value_array_get_value (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                           <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> index</code></em>);</pre>
<p>Gets the value that is a member of the array contained in <em class="parameter"><code>value</code></em>
 and
has the index <em class="parameter"><code>index</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-array-get-value.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> of type <a class="link" href="gstreamer-GstValue.html#GST-TYPE-ARRAY:CAPS" title="GST_TYPE_ARRAY"><span class="type">GST_TYPE_ARRAY</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>index</p></td>
<td class="parameter_description"><p>index of value to get from the array</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-array-get-value.returns"></a><h4>Returns</h4>
<p>the value at the given index. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-array-prepend-value"></a><h3>gst_value_array_prepend_value ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_value_array_prepend_value (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *value</code></em>,
                               <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *prepend_value</code></em>);</pre>
<p>Prepends <em class="parameter"><code>prepend_value</code></em>
 to the GstValueArray in <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="gst-value-array-prepend-value.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> of type <a class="link" href="gstreamer-GstValue.html#GST-TYPE-ARRAY:CAPS" title="GST_TYPE_ARRAY"><span class="type">GST_TYPE_ARRAY</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>prepend_value</p></td>
<td class="parameter_description"><p>the value to prepend</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-value-fixate"></a><h3>gst_value_fixate ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_value_fixate (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *dest</code></em>,
                  <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> *src</code></em>);</pre>
<p>Fixate <em class="parameter"><code>src</code></em>
 into a new value <em class="parameter"><code>dest</code></em>
.
For ranges, the first element is taken. For lists and arrays, the
first item is fixated and returned.
If <em class="parameter"><code>src</code></em>
 is already fixed, this function returns <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>.</p>
<div class="refsect3">
<a name="gst-value-fixate.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>dest</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> destination</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>src</p></td>
<td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> to fixate</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-value-fixate.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>dest</code></em>
contains a fixated version of <em class="parameter"><code>src</code></em>
.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-flagset-register"></a><h3>gst_flagset_register ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="returnvalue">GType</span></a>
gst_flagset_register (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> flags_type</code></em>);</pre>
<p>Create a new sub-class of <a class="link" href="gstreamer-GstValue.html#GST-TYPE-FLAG-SET:CAPS" title="GST_TYPE_FLAG_SET"><span class="type">GST_TYPE_FLAG_SET</span></a>
which will pretty-print the human-readable flags
when serializing, for easier debugging.</p>
<div class="refsect3">
<a name="gst-flagset-register.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>flags_type</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> of a <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#G-TYPE-FLAGS:CAPS"><span class="type">G_TYPE_FLAGS</span></a> type.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="ix07.html#api-index-1.6">1.6</a></p>
</div>
</div>
<div class="refsect1">
<a name="gstreamer-GstValue.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GST-FOURCC-FORMAT:CAPS"></a><h3>GST_FOURCC_FORMAT</h3>
<pre class="programlisting">#define GST_FOURCC_FORMAT "c%c%c%c"
</pre>
</div>
<hr>
<div class="refsect2">
<a name="GST-TYPE-INT-RANGE:CAPS"></a><h3>GST_TYPE_INT_RANGE</h3>
<pre class="programlisting">#define GST_TYPE_INT_RANGE               (_gst_int_range_type)
</pre>
<p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> type that represents an integer range</p>
<div class="refsect3">
<a name="GST-TYPE-INT-RANGE.returns"></a><h4>Returns</h4>
<p> the <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> of GstIntRange</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-TYPE-BITMASK:CAPS"></a><h3>GST_TYPE_BITMASK</h3>
<pre class="programlisting">#define GST_TYPE_BITMASK                 (_gst_bitmask_type)
</pre>
<p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> type that represents a 64-bit bitmask.</p>
<div class="refsect3">
<a name="GST-TYPE-BITMASK.returns"></a><h4>Returns</h4>
<p> the <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> of GstBitmask (which is not explicitly typed)</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-TYPE-FLAG-SET:CAPS"></a><h3>GST_TYPE_FLAG_SET</h3>
<pre class="programlisting">#define GST_TYPE_FLAG_SET                   (_gst_flagset_type)
</pre>
<p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> type that represents a 32-bit flag bitfield, with 32-bit
mask indicating which of the bits in the field are explicitly set.
Useful for negotiation.</p>
<div class="refsect3">
<a name="GST-TYPE-FLAG-SET.returns"></a><h4>Returns</h4>
<p> the <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> of GstFlags (which is not explicitly typed)</p>
</div>
<p class="since">Since: <a class="link" href="ix07.html#api-index-1.6">1.6</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GST-FLAG-SET-MASK-EXACT:CAPS"></a><h3>GST_FLAG_SET_MASK_EXACT</h3>
<pre class="programlisting">#define GST_FLAG_SET_MASK_EXACT ((guint)(-1))
</pre>
<p>A mask value with all bits set, for use as a
GstFlagSet mask where all flag bits must match
exactly</p>
<p class="since">Since: <a class="link" href="ix07.html#api-index-1.6">1.6</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GST-TYPE-INT64-RANGE:CAPS"></a><h3>GST_TYPE_INT64_RANGE</h3>
<pre class="programlisting">#define GST_TYPE_INT64_RANGE             (_gst_int64_range_type)
</pre>
<p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> type that represents an <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="type">gint64</span></a> range</p>
<div class="refsect3">
<a name="GST-TYPE-INT64-RANGE.returns"></a><h4>Returns</h4>
<p> the <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> of GstInt64Range</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-TYPE-DOUBLE-RANGE:CAPS"></a><h3>GST_TYPE_DOUBLE_RANGE</h3>
<pre class="programlisting">#define GST_TYPE_DOUBLE_RANGE            (_gst_double_range_type)
</pre>
<p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> type that represents a floating point range with double precision</p>
<div class="refsect3">
<a name="GST-TYPE-DOUBLE-RANGE.returns"></a><h4>Returns</h4>
<p> the <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> of GstIntRange</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-TYPE-LIST:CAPS"></a><h3>GST_TYPE_LIST</h3>
<pre class="programlisting">#define GST_TYPE_LIST                    (_gst_value_list_type)
</pre>
<p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> type that represents an unordered list of <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> values. This
is used for example to express a list of possible values for a field in
a caps structure, like a list of possible sample rates, of which only one
will be chosen in the end. This means that all values in the list are
meaningful on their own.</p>
<div class="refsect3">
<a name="GST-TYPE-LIST.returns"></a><h4>Returns</h4>
<p> the <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> of GstValueList (which is not explicitly typed)</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-TYPE-ARRAY:CAPS"></a><h3>GST_TYPE_ARRAY</h3>
<pre class="programlisting">#define GST_TYPE_ARRAY                   (_gst_value_array_type)
</pre>
<p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> type that represents an ordered list of <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> values. This is
used to express a set of values that is meaningful only in their specific
combination and order of values. Each value on its own is not particularly
meaningful, only the ordered array in its entirety is meaningful. This is
used for example to express channel layouts for multichannel audio where
each channel needs to be mapped to a position in the room.</p>
<div class="refsect3">
<a name="GST-TYPE-ARRAY.returns"></a><h4>Returns</h4>
<p> the <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> of GstArrayList (which is not explicitly typed)</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-TYPE-FRACTION:CAPS"></a><h3>GST_TYPE_FRACTION</h3>
<pre class="programlisting">#define GST_TYPE_FRACTION                (_gst_fraction_type)
</pre>
<p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> type that represents a fraction of an integer numerator over
an integer denominator</p>
<div class="refsect3">
<a name="GST-TYPE-FRACTION.returns"></a><h4>Returns</h4>
<p> the <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> of GstFraction (which is not explicitly typed)</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-TYPE-FRACTION-RANGE:CAPS"></a><h3>GST_TYPE_FRACTION_RANGE</h3>
<pre class="programlisting">#define GST_TYPE_FRACTION_RANGE           (_gst_fraction_range_type)
</pre>
<p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> type that represents a GstFraction range</p>
<div class="refsect3">
<a name="GST-TYPE-FRACTION-RANGE.returns"></a><h4>Returns</h4>
<p> the <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> of GstFractionRange</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-LESS-THAN:CAPS"></a><h3>GST_VALUE_LESS_THAN</h3>
<pre class="programlisting">#define GST_VALUE_LESS_THAN              (-1)
</pre>
<p>Indicates that the first value provided to a comparison function
(<a class="link" href="gstreamer-GstValue.html#gst-value-compare" title="gst_value_compare ()"><code class="function">gst_value_compare()</code></a>) is lesser than the second one.</p>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-EQUAL:CAPS"></a><h3>GST_VALUE_EQUAL</h3>
<pre class="programlisting">#define GST_VALUE_EQUAL                   0
</pre>
<p>Indicates that the first value provided to a comparison function
(<a class="link" href="gstreamer-GstValue.html#gst-value-compare" title="gst_value_compare ()"><code class="function">gst_value_compare()</code></a>) is equal to the second one.</p>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-GREATER-THAN:CAPS"></a><h3>GST_VALUE_GREATER_THAN</h3>
<pre class="programlisting">#define GST_VALUE_GREATER_THAN            1
</pre>
<p>Indicates that the first value provided to a comparison function
(<a class="link" href="gstreamer-GstValue.html#gst-value-compare" title="gst_value_compare ()"><code class="function">gst_value_compare()</code></a>) is greater than the second one.</p>
</div>
<hr>
<div class="refsect2">
<a name="GST-VALUE-UNORDERED:CAPS"></a><h3>GST_VALUE_UNORDERED</h3>
<pre class="programlisting">#define GST_VALUE_UNORDERED               2
</pre>
<p>Indicates that the comparison function (<a class="link" href="gstreamer-GstValue.html#gst-value-compare" title="gst_value_compare ()"><code class="function">gst_value_compare()</code></a>) can not
determine a order for the two provided values.</p>
</div>
<hr>
<div class="refsect2">
<a name="GstValueTable"></a><h3>struct GstValueTable</h3>
<pre class="programlisting">struct GstValueTable {
  GType type;
  GstValueCompareFunc compare;
  GstValueSerializeFunc serialize;
  GstValueDeserializeFunc deserialize;
};
</pre>
<p>VTable for the <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue-struct"><span class="type">GValue</span></a> <em class="parameter"><code>type</code></em>
.</p>
<div class="refsect3">
<a name="GstValueTable.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> <em class="structfield"><code><a name="GstValueTable.type"></a>type</code></em>;</p></td>
<td class="struct_member_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a></p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a class="link" href="gstreamer-GstValue.html#GstValueCompareFunc" title="GstValueCompareFunc ()"><span class="type">GstValueCompareFunc</span></a> <em class="structfield"><code><a name="GstValueTable.compare"></a>compare</code></em>;</p></td>
<td class="struct_member_description"><p>a <a class="link" href="gstreamer-GstValue.html#GstValueCompareFunc" title="GstValueCompareFunc ()"><span class="type">GstValueCompareFunc</span></a></p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a class="link" href="gstreamer-GstValue.html#GstValueSerializeFunc" title="GstValueSerializeFunc ()"><span class="type">GstValueSerializeFunc</span></a> <em class="structfield"><code><a name="GstValueTable.serialize"></a>serialize</code></em>;</p></td>
<td class="struct_member_description"><p>a <a class="link" href="gstreamer-GstValue.html#GstValueSerializeFunc" title="GstValueSerializeFunc ()"><span class="type">GstValueSerializeFunc</span></a></p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a class="link" href="gstreamer-GstValue.html#GstValueDeserializeFunc" title="GstValueDeserializeFunc ()"><span class="type">GstValueDeserializeFunc</span></a> <em class="structfield"><code><a name="GstValueTable.deserialize"></a>deserialize</code></em>;</p></td>
<td class="struct_member_description"><p>a <a class="link" href="gstreamer-GstValue.html#GstValueDeserializeFunc" title="GstValueDeserializeFunc ()"><span class="type">GstValueDeserializeFunc</span></a></p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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